Teeritoey



(m Mel) w. 0. WATSON.

NUT LOOK.

No. 257,420. Patented May 2, 1882.

664W Mm UNTTED STATES *1 Trice.

PATENT NUT- LOCK.

SPECIFICATION forming part of Letters Patent No. 257,420, dated May 2,1882.

Application filed September 28, 1881. (No model.)

To all whom it may concern Be it known that I, WM. 0. WATSON, ofPuyallup, in the coun ty of Pierce, and in Washington Territory, haveinvented certain new and useful Improvements in N lit-Locks; and I dohereby declare that the followingis a full, clear, and exact descriptionthereof, reference being had to the accompanying drawings,

and to the letters of reference marked thereon,

making a part of this specification.

This invention relates to an improved nutlock; and it is speciallydesigned to produce a cheap and efficient device for securing the nutsof the bolts by which the ends ofthe rails are fastened together, asmore full yhereinafter specified. These objects I attain by the deviceillustrated in the accompanying drawings, in which- Figure 1 illustratesa perspective view ofmy improved nut-lock; Fig. 2, a transverse verticalsectional view of the same; and Fig. 3, a transverse section of a rail,showing my invention.

The letter A indicates the nut-lock, which is composed of a metallicplate, a, of any convenient length and of such width as to be placedbetween the flanges and the tread of the rails and against thefish-plate thereof. The said plate a is provided with a lateralflange,b, which rests upon the sleeper which supports the ends of the rail, andsaid flange is provided with recesses d at its edge, through whichspikes may be placed to hold the device in position. At its lower edgethe device is provided with a rabbet, c, which extends over the flangeof the rail and permits the nut-lock to set up closely to the fish-plateof the rails. The plate a is provided with a longitudinal slot, g, of awidth equal'to the width of the nuts, which are square or polygonal, asusual.

In applying my invention the bolts are inserted through the rails andflsh plate, and the nuts are screwed home, care being taken to have allthe belts in a horizontal line. The nut-lock is then placed in position,with the plate a between the flanges and the tread of the rail and theflange b on the sleeper, the nut fitting in the slots. The nut-lock isthen securely fastened to the sleeper by means of spikes, and it will beevident that it will be impossible for the nuts to turn so long as itremains in position.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is-

A nut-lock consisting of a flanged plate, A, provided with alongitudinal rabbet, c, and with a longitudinal slot, g, and recesses d,the said plate being adapted to be secured over the nuts on thejoining-bolts of the rail, whereby they are held in position,substantially as specified. it

In testimony whereof I aflix my signature, in presence of two witnesses,this 29th day of August, 1881.

\VM. 0. WATSON.

WVitnesses:

H. H. WEsToN, '1. J. LAMAR.

